Home / 1,087,511.31-1,631,898.90-447,879.42

Finding the Fourth Proportional to 1,087,511.31, 1,631,898.90 and 447,879.42

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Solution

The fourth proportional to 1,087,511.31, 1,631,898.90 and 447,879.42 is: 672,079.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,511.31 : 1,631,898.90 = 447,879.42 : x
  2. Step 2: Convert to fraction form
    1,087,511.31/1,631,898.90 = 447,879.42/x
  3. Step 3: Cross multiply
    1,087,511.31x = 1,631,898.90 × 447,879.42
  4. Step 4: Simplify right side
    1,087,511.31x = 730,893,932,830.64
  5. Step 5: Solve for x
    x = 730,893,932,830.64/1,087,511.31
  6. Step 6: Final answer
    x = 672,079.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.